Sliding-door lock.



W. S. WOODWARD.

SLIDING DOOR LOCK.

APPLICATION FILED APR-6. 1914.

l 1 4 1,43 9 I Patented June 1, 1915.

314 Lima I04,

CE 'I m Q Wm WSWwd ward I W C G'- v Gumm 3 THE NORRIS PETERS CO4v PHoTo-LlTHQ. WASHINGTON. D. c

w LIAM s. woonwnnn, or una, MICHIGAN.

.SLIDING-DOQB LOCK- I Application filed April 6, 1914. Serial 1101830909 To all whom it may concern: I

Be it known that I, WILLIAM S. l/VoonwAnD, a citizen ofthe United States, residing at Burt, in the county of .Saginaw, State. of Michigan, have invented certain new and useful Improvements in Sliding-Door Locks and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others sk1lled in the art to which it appertains to make and use the same.

This invention relates to improvements 1n sliding door locks and has referenceto an article of this nature particularly adapted for use in connection withsliding doors for freight cars. I In carrying out the invention 1t 1s my purpose to provide a lock of th1scharacter which may be automatically locked when the door is in its closed position, and which cannot be unlocked without the use of the proper key.

A further object of my invention is the -provision of a strong and durable lock of this character, that is efficient in operation, may be manufactured at a comparatively low cost, and is composed of a few simple parts that will not easily get out of order.

With these and other objects in view my invention consists in the construction, combination and arrangement of parts set forth in and falling within the scope of the appended claim.

In the accompanying drawing :Figure l is a side elevation of the lock applied to a car with the front of the casing removed and the various parts shown in their locked position. Fig. 2 is a view similar to Fig. 1 but showing the parts in their unlocked position. Fig. 3 is a sectional view on the line 33 of Fig. 1. Fig. 4 is a sectional View on the line 4-4 of Fig. 1. Fig. 5 is a sectional view on the line 5-5 of Fig. 1. Fig. 6 is a I outside of a door frame andsecured thereto by bolts or other suitable fastening means.

Arranged within the casing 10, and pivotally mounted on pins 13 carried thereby, are a pair of locking levers 14 and 15, the outer ends of which are provided with oppositely specification of Letters Iatent.

Patent une 9 turned.cooperating'locking fingers 16. The inner :end of the lever 15 is continued beyond that of the lever '14, and terminally provided with a cam surface '17, the purpose of which-will presently appear.

.Mounted in the casing 10 and disposed rearwardly of the lever 14, and above the innerextremities of the lever 15, is a pin 18, said .pin being centered in the key opening 11. Pivotally mounted on this guide pin 18 is a supporting bracket 19, said bracket being formed with a squared key receiving opening 20 and provided at its lower end with an outwardly and-upwardly directed portion 21,-said portion being adaptedtosupport the inner end of the lever 15 and engage the camsurface 1-7 thereof.

The cas ng 10 is also provided .with a stop pin 22,-; said pin :being' disposed above the inner end of the lever 14 and adapted to limit the fdownward movement of the finger 13 thereof when same is in its inoperative position.

Insertible within the slotted portion 12 of the casing 10 is a locking bolt 23, said bolt being stamped from a single blank of metal and provided at one end with a right angular extension or handle portion 24 and longitudinal slots 25. The other end of the lock bolt 23 is slightly reduced as at 26 and terminally provided with a wedge-shaped head 27 and notches 28, said notches receiving the fingers 13 of the levers 14 and 15 when the device is in its locked position.

This lock bolt 23 is slidably mounted on the car door, and held in position thereon by means of U-bolts 29, one of said U-bolts straddling the reduced portion 26 of the bolt and supporting the inner end thereof, and the legs of the other U-bolt passing through the slots 25 of the bolt and limiting the sliding movement thereof with respect to the door.

Illustrated in Fig. 6 of the drawing is the key used in connection with this lock, said key being provided with a socket 30 and projections 31 and 32, the former being squared and insertible within the squared opening 20 of the bracket 19 and the latter engageable with the inner end of the locking lever 14.

In operation the bolt 23 is slid to its operative position in the guide staples 29 by means of the handle 24, the reduced portion pin 18, the bracket 19 swinging rearwardly thereon, the supporting .end 20 of the bracket engaging the cam surface 17 of the 1ever'15, and the. projection 32 of .the key engaging the inner end of the lever 14. The fingers 16 of the levers are thus swung out of engagement with the notches 28 and the various parts placed in their unlocked position as is clearly shown in Fig. 2.

From the above description it will be seen that I have provided an extremely strong, durable and inexpensive device of the kind described which is composed ofa few parts that will not easily get out of order.

7 What is claimed, is

In a lock, the combination of a bolt adapted for attachment to a relatively movable relatively fixed element and engaging one of'the members of the keeper to limit movement thereof in one direction, key operated means provided at one side with a projection insertible in an opening in said pivoted element whereby the latter will be swung out of locking relation to the bolt, and a projection carried, at the opposite side of said key operated means and engageable with the other member of thekeeper during p to move the keeper member engaged thereby the swinging of said pivoted element to move the last named member out of locking relation to the bolt. 7

In testimony whereof, I aflix my signature, in the presence oftWo-witnesses.

, WILLIAMS. woonwAnnQ 'iWitnesses: V

JAs. W. MoRsE, Jr., JLC. MoIN'rosH. f

Copies of this patent mayrbe obtained for five cents each, by addressing the Commissioner of Patents. V

Washington, D. G. 

